Coherent transport of atomic wave packets in amplitude-modulated vertical optical lattices
Quantum Physics
2010-09-14 v2
Abstract
We report on the realization of dynamical control of transport for ultra-cold Sr88 atoms loaded in an accelerated and amplitude-modulated 1D optical lattice. We tailor the energy dispersion of traveling wave packets and reversibly switch between Wannier-Stark localization and driven transport based on coherent tunneling. Within a Loschmidt-echo scheme where the atomic group velocities are reversed at once, we demonstrate a novel mirror for matter waves working independently of the momentum state and discuss possible applications to force measurements at micrometric scales.
Keywords
Cite
@article{arxiv.0903.0724,
title = {Coherent transport of atomic wave packets in amplitude-modulated vertical optical lattices},
author = {A. Alberti and G. Ferrari and V. V. Ivanov and M. L. Chiofalo and G. M. Tino},
journal= {arXiv preprint arXiv:0903.0724},
year = {2010}
}